<div id="pestañas_contenido" class="easyui-tabs" border="false" style="width:auto;height:250px;">  
    <div title="<?php echo($_SERVER['SERVER_NAME']." ".$_SERVER['SERVER_ADDR']);?>" selected="true" >  
        <?php include_once('tabs/configuracion_general.php');?>
    </div>    
    <div title="Usuarios" style="padding:20px;">  
        <?php include_once('tabs/usuarios.php');?>
    </div>  
</div> 